Senior Technology Architect for Mainframe

A.T. Consulting & Recruiting Inc. • toronto, Canada

Location toronto, on
Job Type Full-time
Posted May 28, 2026

Role Description

Elevate your career as a Senior Technology Architect, focusing on Mainframe Performance and Capacity Management. Bring your expertise to the Government of Ontario, engaging in impactful capacity analyses and reporting.

This role requires a seasoned professional with a minimum of 10 years overseeing mainframe infrastructures. You will assess capacity requirements for CPU upgrades, reconcile mainframe billing, and perform complex workload calculations in a multi-partitioned environment. Experience with tools like MICS and RMF is essential to enable effective decision-making in a government setting.

Key Responsibilities: • Perform capacity requirement assessments for CPU upgrades • Reconcile mainframe billing for ISV workloads • Conduct ‘what-if’ impact modeling for services • Identify and implement CPU cost-saving opportunities • Drive reporting and data visualization with MICS and RMF

Requirements: • Minimum of 10 years in Mainframe Performance Management • St...

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